COMP Cams Camshaft Kit FF XM278H

COMP Cams has built a reputation for making serious performance engine components, and this Xtreme Marine camshaft kit is a prime example. If you're working on a Ford Big Block 385 Series engine, specifically the 429 or 460 cubic inch variants, this kit is designed to wake it up. It's a hydraulic flat tappet camshaft, meaning it uses a traditional valvetrain design that's well-understood and can offer a good balance of performance and reliability for many applications.

This isn't just a camshaft; it's a complete K-Kit, which means COMP Cams has bundled everything you need to get the job done right. Inside the box, you'll find the camshaft itself, a set of lifters, valve springs, retainers, valve locks, and valve stem seals. To make sure your timing is spot on, a timing chain set is also included. For flat tappet applications like this one, they even throw in assembly lube to help protect the critical surfaces during initial startup. This comprehensive approach saves you time and ensures you have compatible parts from the start.

The XM278H camshaft profile is noted as being good for jet boats with an A impeller, suggesting it has a strong mid-range and top-end powerband that works well in applications where sustained high RPMs are common. To really let this camshaft breathe, COMP Cams recommends using a good manifold and notes that it really likes headers. This kit fits a wide range of Ford vehicles from the late 60s through the mid-90s, including popular models like the F-150, F-250, and many of the big Ford sedans and personal luxury cars of the era. Remember to check the included instructions for proper installation and break-in procedures.